Printing-telegraph apparatus



Dec. 10, 1929. c. L. KRUM ET AL PRINTING TELEGRAPH APPARATUS 8 Sheets-Sheet 1 Original Filed' Oct. 13. 1919 uw, 1929. c. L KRUM Erm., H3383?? PRINTING lTLLEGRAPH APPARATUS Originai Filed Oct. 13. 191.9 8 Sheets-Sheet 2 Dec. lo, 1929.. I c., KRUM Er Al,l 1,738,777

' PRINTING T ELEGRAPH-APPARATUS. l

original Filed oct. 15, i919 s sheets-#sheet 3 Z3 if W 750. J' M9 f GD mz, /mmfmm/@m Dec. 10, 1929. A Q L, KRUM ET AL ES?? PRINTING TELEGRAPH APPARATUS original Filed 00h15. 1919 a sheets-sheet 4 Y 0A AMW/g @WAM Dec. l0, 1929.

c. l. KRUM ET AL 1,738,777 PRINTING TELEGRAPH APPARATUS original Filed-oct. 1s, 1919 8 Sheets-Sheet' 5 Dm. l0, 1929. c. L KRUM ET AL PRINTING TELEGRAPH APPARATUS original Filed oct. '13, 1919 avsheetsfsneet uw 1o, 1929.

c. LQ KRUM ET Al.

'PRINTING TELEGRAPH APPARATUS original med oct. 13.1919

a Sheets-sheet v Y WK/A .,Q 4 .Q

i c. l. KRUM Er AL 'PRINTING TELEGRAPH 'APPARATUS original Filed t. 1s. 1919` Patented Dec. 10, 1929 UNIE CHARLESL. KBUM .AND HOWARD L. XRUMQOF CHICAGO, ILLINOIS, ASSIGNOBB, BY

MESNE ASSIGNMENTS, TO TELETYPE CORPORATION', OF CHICAGO, ILLINOIS, A COR- PORATION OF DELAWARE PRINTING-TELEGBAPH APPARATUS Application filed October 18, l1919,Serial'No. 330,325. Renewed vAugustS, 1928.

The-invention relates to printing telegraph apparatus and seeks to provide an improved construction which will operate accurately and at high speeds. More particularly the 5 present invention seeksto improve the construction set forth in our prior United States Letters Patent No. 1,232,045, dated July 3, 191

' The invention consists in the features hereinafter set forth, illustrated in the preferred form in the accompanying drawings, and more particularly pointed out in the appended claims.

Figure 1 is a front elevation with the top plate of the machine shown in section and with parts of the frame or casing removed or broken away. Fig. 2 is a plan view with parts shown in section on the line 2-2 of Fig. 1. Fig. 3 is a vertical section on an 0 enlarged .scale on the line 3-3 of Fig. 1.

Fig. 3a is a detail section on the line a-a of Fig. 2. Fig. 4 is a side elevation of the upper left-hand ortion of the machine illustrat-ing the lineeed mechanism. Fig. 4a is a detail. view in vertical elevation of parts shown inFig. 2. Fig. 5 is a vertical section on the line 5 5 of Fig. 2. Fig. 6v is a ver` tical section of the selector mechanism at the right-hand side of the machine. Fig. 7 is a horizontal section on the line 7-7 of Fig. 6. Fig. 8 is a side elevation of the parts shown inFigs. 6 and 7 with the base plate shown in section. Figs. 8a and 8b aredetail sections on lines a--a and b-b, respectively, of Fig. 8. Figs. 9 and 10 are vertical sections on the lines 9-8-9 and 10-10 of Fig. 6. Figs. 10, 16", 10c and 10d vare detail views of the selector plates. Fig. 1 1 is a diagram of the operating circuits. l

The machine frame comprises a cast metal base plate 10, a set of corner osts 11 iixed to and extending upwardly rom the base plate and a top plate 12 is mounted on and preferably removably attached to the upper ends of the corner posts. Preferably-sheet metal plates (not shown) extend between the corner posts for enclosing-and protecting the operating parts ofthe machine which are largely arranged between the base and top plates of the frame.

The paper sheet printed upon passes over a horizontal transverse platen 13 mounted upon the top plate of the machine. The platen shaft 14 is journaled in two brackets l5 that are fixed to and project upwardly from the top plate, the shaft being provided.

at its ends with the usual finger piece 16. The sheet is guided to and from the platen roll by plates 17, 18 and v19 which extend between the brackets 15. A cooperating feed rollerv20 is mounted upon the upper ends of` a pair of pivoted arms 21 which are springpressed to hold the feed roller 20 in engagement with the platen roll. A paper scale 23 also extends between the 'upper ends of the arms 21 and is provided with aper guide fingers 24 which extend upwar ly and inwardly over the roll. r

At its left-hand end, the platen shaftis provided with a ratchet wheel 25 which is arranged tobe engaged by a pawl 26. The pawl is pivoted upon the .upper end of a linespace lever 27 and is spring-pressed toward the ratchet wheel. The lever is fixed to a short shaft 28 journaled in the adjacenty platen bracket 15 and this shaft is provided with a rearwardly projecting arm 29 `(see Figs. 3 and 4) which is arranged to be engaged by a vertically movable actuating rod 30. The latter is fixed to the; armature yoke of the double spool solenoid magnet 31 which is mounted upon and depends from the top end. A fixed stop pin 3.4 extends into anl opening in the lever 33 and limits its extent of movement anda spring 35 engages its rear end and holds it in either raised or lowered position, so that it will variably limit'the backward movement of the line-space lever.

The magnet 31 is adapted to be energized by the transmission of a special signal and when energized operatesthe line-space lever and advances the platen. Preferably, as.l

shown, the line-space lever is provided with a fixed stop lug 36 which engages the ratchet and prevents overthrow. A spring-held jockey pawl' 37 alsoA engages the ratchet to holdthe platen against accidental movement.v

By shifting the lever 33, the throw of the lever 27 can be adjusted to eiectsingle or f spring-pressed contact plungers 31 (see Fig.

4") which are mounted on one of the rear cor.

ner posts and are arranged to engage suitable jacks or contacts carried by the to'p plate.

The type are arranged upon a carrier or type-wheel 38 in two rows, the characters in the upper row and the figures and punctuation mar struction set forth in the prior patent referred t'o, the typewheel `is mounted upon `a s indle 39 which slides longitudinally tlirough a hollow shaft 40. This shaft is journaled in a swinging arm 41 having a yoke 42 at its lower end which is connected by pivot screws to va pair of u ing lugs 43 on a carriage 44 see Figs. 1, 2 and 3). The lower end of the shaft 4() is connected by a universal coupling 45 to the upper end of a short vertical shaft 46 which is journaled in the carriage 44. The front portion ofthe carriage is provided with two bearing lugs 47 which slidably engage a heavy horizontal track bar or guide 48 lwhich extends between and is fixed at its ends to vertical right and left hand brackets49 and 50, mounted upon the base plate. The track bar 48 and the bearing openings in the lugs 47 are g 4o P referably cylindrical and a rearwardly projecting lug on the carriage is provide with a roller 51 which engages a cylindrical guide rod or rail 52 which extends between the upper rear portions of the brackets 49 and 50. A keeper 53 fixed to a depending lug on the rear portion of the carriage extends beneath the guide rail, but normally just out of contact therewith, and serves to prevent any undue oscillation of the carriage about its ma-inguide or track 48. The carriage and the typewheel carried thereby-are thus movable horizontally to effect the letter-spacing.

The typewheel is rotated to bring the proper type opposite the printing point and the arm 41 and typewheel carriedthereby are oscillated to effect the impression of the selected type "upon the paper on the platen by two horizontal shafts 54 and 55 which extend between and are journaled at their ends in the brackets 49 and 50. These shafts are preferably square in section,'as shown. The shaft 44 is lconnected to the rotating typewheel by a pair of intermeshing beveled pmions 56 and v57, one of which is fixed to the lower end of a'short vertical shaft`46 and s in the lower row. As in the `conthe other of which is arranged toslide upon theshaft 54, but has a square opening through which the shaft extends and, therefore, ro-

tates with the shaftfThe carriage is provided with a depending lug-f58f which engages a groove in the hub of the pinion 56, so thatth'e latter shifts horizontally with the carriage in letter-space direction. A rock arm 59 (see Fig. 3) is connected by a link 60v to the oscillating arm"41. The hub of the rock arm is provided with a square opening through which the shaft extends, and by rocking the shaft, the arm'41 and typewheel 38 can be shifted'to strike against the platen. The carriage is provided with two rearwardly projecting lugs 59' having large openings therein through which the shaft'55 extends and arranged on opposite sides of the hub of the rock arm 59, so that the. latter moves in letter-space direction with the carriage. It should be noted that no part of the Weight ofthe typewheel carriage is borne by the typewheel rotating and striker shafts 54 and 55, but is carried entirely pon the uide rods 48 and 52. It should also .be not'et that a line extending through the main guide rail 48 and the pivot of the striker arm 41 will pass through the printing point at the front of the paper laten, and by reason of this arrangement t e striking of the typewheel against the platen will not tend to disturb the alignment of the printed matter.

A collar 61 is mounted on the shaft 40 and is connectedto the typewheel spindle by a screw 62 extending through a longitudinal slot in the shaft. A plunger '63 which is longitudinally shiftable in lugs on the oscillating arm 41 is provided with a fork 64 which enages a groove in the collar 61 and is adapted to shift the typewheel to effect the printing either of characters or of the -figures and punctuation marks. To compel the rotation of the typewheel with the shaft 4() and still ermit its vertical shift, an eccentric memrv or lug 65 is provided which is fixed to the upper end of the shaft 40 and extends through i an eccentric opening in the typewheel.

VThe plunger 63 is pivoted at a point near the pivotal axis of the striker arm to the upper end of a link 66 which is pivoted at its lowery end to the horizontalarm of a bell-crank lever 67. The latter is pivotally mounted on a depending `lug of the carriage and carries a roller 68 on its dependingvarm which is adapted to be engaged by the horizontally extending bail 69,-- the up-turned ends of which' are pivoted to the brackets 49 and-'- 50.

By properly operating theshafts 54 and 55 and the bail 69, the rotating, striking and case shift movements of--the typewheel are effected. As in the prior patent referredA to, a centering wheel 70 is fixed tothe upper end of the shaft 40 and cooperates with an arml 71, the latter being pivoted to the striker arm and being controlled by a cam 7 2fixed'to the maV - which is journaled at one end in the righthand bracket 49 and at its opposite end 1n a lug 76 on an upright bracket 77. A depend-l ing arm 7 8 of this shaft (see Fig. 3) is connected to the adjacent ends of two springs 79. The rear end of one spring is fixed to the bracket 77 and the forward end of the other spring is connected to an adjusting screw 80.`

These springs serve to restore and hold the shaft 75 and the typewheel geared thereto in normal central position.

A cross-bar 81 fixed to the shaft 75 is arranged to be engaged by two' actuating plungers 82 which are guided in the bracket 77 and are connected to the armature yokes of two solenoid plungers 83 that are mounted on vand extend rearwardly from the brackets 77. Coil springs 84 on the plungersl hold them in engagement with the cross-bar v81;` The' oper- ,y

upper end portion which 1s arranged adjacent ation of the solenoids serves tov rotate the shaft 75 and parts geared thereto, including the typewheel, either in right'or left hand direct-ion.-

. The apparatus and the extent of rotation of` the typewheel are controlled byA a selecting mechanism which is adapted to be actuated or controlled in response to signals transmitted P over a line circuit. The apparatus and selector mechanism are adapted for -use in connection with a five unit codethat is to say,

- a code in which each character or signal is represented by permutations of five positive andl negative impulses or intervals, or of five intervals of current and no current. The s electorV mechanism is controlled by five selector magnets 1, 2, 3, 4 and 5 mounted on a bracket 85V at the rear right-hand portion of the base plate (see Figs. 8 and 8") and are arranged to respond respectively to the corresponding intervals or Aunits of thev code.

i Preferably, as shown, the magnets are com- '.pactly arranged upon thev bracket 85-3 magnets 1n lan upper row and 2 in a lower row. These magnets controla series of spring actuated latches 86 which are pivotally mounted on a shaft 87 which in turn is mounted on the front face ofthe bracket85. TheI latches control a series of horizontally movable, springvactuated plungers 88 which are guided in bracket 89 and in plate 90 (see Figs. 7 and 8.) The latches (see Fig. 8) engage notches in the rea-r. ends of the plungers 88. Three of the latches are arranged below their respective plungers and two above the same, and springs 91 are provided for pressing the latches toward their respective plungers. The.

lower row of latches Iare provided withupwardly projecting tailfpieces 92 and the upper row with similar downwardly projecting tailpieces, and these tail-pieces are arranged to e engaged respectively by a set of actuating rods or plungers 93 which are connected to the cores or armatures of the solenoid select in magnets 1, 2, 3, 4 and 5, the arrangement being such that whenever one of the magnets is operated, a corresponding latch is shifted against the pressure of its spring and thereby releases the plunger 88 controlled thereby.` Springs 94 coiled about the plungers 88 extend between the bracket 89 and the collars 95 on the plunger and tend to shift the plungers forwardly when the latches 86 are-tripped.

The plungers 88, corresponding in the presthe selector plates 96. The latter are carried by and'arr'anged to oscillate upon a flanged a hub 99 which is fixed to the inner face of a plate 100, spacing washers being interposed etween the selector plates. IThe plate 100 is fixed to two horizontal pins or bolts 101 which roj ect outwardly from the bracket 49, spacing sleeves 102 (see Fig. 10) being interposed between the plate 100 and the bracket, Each selector plate is provided with a slotted ear 103 onone side which engages one of tlireJ spac ing sleeves 102, and the length 4of the slots limits the extent of oscillation of the plates.

The plates are shifted or set in position Vby a series of levers 104 which are mounted at their lower ends on .a series of horizontal shafts 105 that arejournaled in a bracket 106 on the base plate. The upper ends of the levers are slotted and engage pins 104 that are fixed respectively to projecting lugs on the lower edges of the selector plates 96. Cross-arms 107 are fixed to the shafts 105 and springs 108 engaging the lowei` ends of the cross-arms serve to hold these parts and selector plates in the normal position shown. The upper ends rof the arms 107 are provided with adjust-able abutment screws 109 which are arranged to be engaged respectively by the forward ends of the plungers or trip rods 88 corresponding to the selector magnets 1, 2, 3 and 5. Whenever one of these selector magnets is energized, it will trip its latch and release the corresponding .plunger 88. The springs of these plungers are stronger than the springs 108 which hold the selector plates in position and will serve to actuate the rods and plates in different combinations and in i A accordtmce with the operation ofthe selector magnets. Selector magnet 4, in the construction shown, does not controla selector plate,

but when energized the corres onding plunger engages one of two normal y open contact springs 110 and brings the same into engagement. These contacts (see Fig. 8) are mountdepend from a lug that projects ed upon and This plate is upwardly from the plate 90. mounted on the bracket 106.

lThe selector stop pins l97 are carried by a drum comprising two plates 111 ,and 112 which are fixed to a central flanged support 113, which is'prefcrably hollow to reduce its weight. The'plates are provided at their side edges (see Fig. 9) with ears connected by sleeves 114 and these sleeves slidably engage the horizontal bolts 101. Each of the .pins is provided witha coil spring 115 which extends between the outer plate 112 and a collar 116 ixedto the pin and the: springs serve to hold the pins in normal position with the collars 116 engaging the plate 111.

At each operationof the machine the stop pin drum is shifted tothe left by means of a lever 117 which is pivotally mounted adjacent its lower end onl the bracket 106 and the upper end of which is arranged to engage an abutment 118 on the hub of the stop pin drum. The lower end of the lever 117 is arranged to be engaged bythe horizontal plunger or actuating rod 119 which is guided in a lug on the ybracket 106 andis connected tothe yoke armature ofa double solenoid magnet 120. When the drum actuating magnet 120 is energized, it shifts the pin drum inwardly and brings the stop pins 97'in engagement with lThe latter, as shown in the selector plates.

4 Figs. 10", 10", 10 and' 10l are provided with openings which `are variably arranged and such tliat-whenth'e plates areset in accordance with the different code signals, two of the pins are projected through theselector plates and brought int'o the path of travel of the stop arm 98.. One of the other of the typewheel rotator magnets 83 is' then operate until the stop arm engages oneor the'other of the projected pins, which thus serves to arrest the typewheel with'the pro er character in vprinting position. Which o the two rotator magnets 83 isoperated, is determined b v the operation of .thev selectormagnet 4 which either closes the contacts 110 or leaves them open. In one position of the selector plates, no pins will be projected and the shaft 54 and typewheel operated thereby will be rotated in one or the other direction until the stop arm98 engages a lug 121 formed upon the lower edge of the plate 100 and extending through elongated slots in the selector plates. When the drum actuating mechanism 120 is decnergized, the s rings, 115 on the stop pins and en two pins 9 return the pin drum an other parts operating the magnet to the normal position shownm the drawings. Vlhen the rotator magnet is deenergized, the centering s ring 7 9'will restore the parts operated there y, including the typewheel, to normal central position. Preferably additional meansare provided for accurately centering the shaft 54 andtypewheel geared thereto. This means comprises a cam 122 (seeAFigs. 6 and 10) mounted on the shaft 54 adjacent the stop arml 98. semi-circular intermediate portions and shoulders. It cooperates with a pair of op positely disposed awls 123 which are pivotally mounted on t e outer face of lt-he bracket 59 and have upwardly projecting dogs connected by a spring 124. This spring holds the pawls in normal fposition in engagement with the shoulders o the cam 122 and with the upwardly projecting portions of the This cam has high and low v pawls in engagement with two stoppins 125 that project outwardly from the bracket 49.

When the typewheel and shaft are shifted in one or the other direction, one or the other .of the pawls will be oscillated against the movement until after the stop pin drum has been shifted to project; the stop pins 97 through theA selector plates. For this .pur-A pose a pair of locking do s 126 (see Fig. 5) are pivoted on the inside o the bracket 49 and are arrangedto engage shoulders on a part 127 on the shaft 54. A spring 128 connects the locking pawls and holds them in normal position with lugs 129thereon engaging the d inner end of a release lever 180. The latter (sce Fig. 6) is Vin the form of a bell-crank and is pivoted on the outer face of the bracket and one arm extends therethrough and engages. the lugs 129 of the locking pawls. The other arm of the bracket depends from its pivot and is arranged to beengaged by a forwardly projecting lug 131 which is mounted on the lower portion of the plate 111 of the stop pin drum. When the latter is actuated to set the stop pins, the lug 131 engages the release lever 130 and shifts the pawls 126 so that the typewheel can be rotated.

When the selector plates have been set in accordance with any codesignal and the drum vhas been shifted to project the selected pins through openin s in the plates, the latter will d hold the plates inthe particularset position until the stop pin drum is returned to normal position. For' this reason theA selector actu-v which hasnotches in its edge through which bracket 89 and is connecte the plungers 88 extend and whichisarranged y to engage the collars 95 fixed to the plungers. A horizontal actuating rod 135 is arranged to engage the upper par-t of the reset plate 132. This rod is guided in the upt'per portion of the to the armature yoke of a double 4spool solenoid reset magnet 136. When the stop pin drum moves forward a short distance,the circuit of the reset magnet is'energized and the latter is actuated to shift the plate 133 andthereby force any -of the selector actuating rods which may have been shifted back to normal position in reengagement with the latches 86 and with their actuating springs 94 com' ressed. Preferably, the resetting bar 134 1s held in'engagement with the collars 95 by a light spring 137 inter osed between the plate 132 and an upward projecting lug on the plate 9 0. [The resettlng plate 132 carries a contact screw 138 which is arranged to cooperate with a contact spring 139. These contacts are interposed in the operating circuit of the apparatus, or preferably' in the circuit of the relay which controls the operating circuit. When any selector magnet 1s operated and the corresponding plunger or actuating rod 88 shifted, the contacts are engaged, but if none of the selector magnets are energized, the operating circuit will not be closed.

The armature yoke of the reset magnet 136 also carries an adjustable screw 140 which is arranged to engage the longer of two normally open `contact springs 141 and close these contacts whenever the reset magnet is actuated. 'These contacts controlthe operation of the striker magnet which shifts the typewheel rearwardly against the platen.

'The striker magnet 142 is in the form of a double solenoid and is mounted in upright position on the left hand endof the base plate adjacent thebracket (see Fig. 1). Its armature yoke is pivotally connected to the central portion of a horizontal lever 143 (see Fig. 3%). The latter is pivoted at its forward end to the bracket 50 and at its rear end is connected tothe lower end of an adjustable link 144 which in turn is connected at its upper end to a cross arm 1 fixed to the 'striker shaft 55. When the riker solenoid 142 .is energized and its plunger and arma- .ture yoke pulled down, the motion transmittedthrough the horizontal lever 143 and link 144'rotates the striker shaft and causes the typewheel to strike against the platen. Normally the striker mechanism is in the position shown in the drawin`gswith the forigs. 8 and 8") which is pivward end of the cross arm 145 in engagement with a' stop screw 146 that is adjustably mountedin a lug 146 on the bracket 50. The f striker mechanismjs returned to and is yieldmgly held 1n normal position by a spring-147 which l extends between an adj ustin' screw 148 and a crank arm 149 on the rig t-hand end of the striker shaft 55 A bracket 150 fixed to the ase plate in rear of the striker magnet 142 is provided with a rearwardly projecting part carrying a contactscrew 151 (see Fig. 3B). This contact coo crates' with an insulated contact 152,l wh1ch 1s mounted on the rear end of an arm` 153. v This arm or 'lever is pivoted between its ends on the bracket 150 and carries an adjustable abutment screw 154 on'its forward end.. A spring 155 normally holds the contacts in engagement, but whenever the striker mechanism is actuated the rear end of the arm 145 strikes the abutment screw-154 and opens the contacts to disengage the contacts and Aopen the o erating circuit.

The con uctor' leading to the contacts152 on the osclll'ating levers 153 is connected to an insulated clip 156 fixed to the bracket 150 and connected to the rear end. of the contact 152 by a coil spring 156 of piano wire (see Fig. 2). The typewheel is shifted step by step between printing operations by a suitable letter-space mechanism comprising fixed and movable rack'bar-s 157 and 158 which are arranged in horizontal position below the main guide or track bar 48 of the carriage.v

The rack bar 157 is fixed at its ends to the brackets 49 and 50 while the rack bar 158 isslidably mounted at its ends in guides 159. Holdingand spacing lpawls 160 and 161 ,(see Figs. 1 and 3) are pivotally mounted on the lower portion of one of the lugs 47 of the carriage, andsprings 162 mounted on the other carriage lug 47 engage the pawls and press them into engagement with the fixed an movable racks respectively.

A spacing lever 163 is pivotally mounted adjacent its lower end to lugs'164 on a bracket 165 and its upper end is pivotally connected.

to the movable rack bar 158. A spring 166 interposed between theI bracket 165 and the lower end of the space lever holds the latter and the rack bar 158 in normal position with the lever in engagementwith a stop screw 167 which is adjustably mounted on the upper end of the bracket 165. `An actuating rod 168 is guided in bracket 165 and is connected to the armature yoke of a double solenoid magnet 169.' The latter is fixed to the bracket 165 and projects laterally therefrom. Whenever the printer magnet 142 is energized, the spacer magnet 169 is also energized and'shifts the rack bar 158 to the leftthrough the space of one tooth, so that' when the magnet is deenergized the.spring.166 will shift the lever and the rack and advance the carriagef and typewheel one step in letter-Space direction.

A cord 1 70 connected to the carriage extends toward the left side of the machme over a guide roller 171- on the upper front portion Aof the bracket 50 and thence over a spring ing dogs from the rack bars, the spring drum will act to quickly return the carriage to commence another line of print. To release the dogs, the horizontal bar 173 is arranged between the spacing rack bars and is mounted on two screw bolts 174 which are fixed to the stationary rack bar 157 and extend through inclined slots 175 in the releasing bar. The holding and spacing dogs are provided with depending lugs 176 which engage the upper edge of the releasing dog and the latter is actuated or shifted upwardlyand toward the right by a lever 17 7 which is pivotally mounted on a bracket 178. The latter carries a single spool solenoid magnet 179, the core of which is provided with an actuating rod 180 which is arranged to en age the lever 177 and thereby shift the carnage return bar 173,.

thereby lifting the holding and spacing dogs 160 and 161. When this occurs, the drum 172, of course, quickly returns the carriage to the lefthand side of the machine.

The carriage return bar 173 lis provided with a forwardly projecting lug 189 which, when the bar' is shifted, is engaged by a locking pawl 190 pivoted on rack bar 158 to hold the bar in shifted position. A spring 191 extending between the pawl and the rack bar 158 yieldingly holds the latter in engagement with a pin 192. After thereturn of the carriage, the holding and spacing dogs are still maintained in disengaged position, but asl soon as the spacing magnet 169 is energized, the movement ofthe rack bar and the locking pawl toward the left releases the carriage return bar 173. The holding and spacing dogs then drop into engagement with .the racks and are Yready to effect the advance of the carriage as soon as the spacer magnet is deenergized.

The letter-spacing magnet 169 is operated upon the printing of each character. 'The carriage return magnet 179 is operated in re.

sponse to the'transmis'sion of special signals over the line. The spacer magnet may also beso operated to effect the spacing between words. Preferably the lever 17 7, which operates the carriage return bar, is provided at its right hand end with `a forwardly projecting finger piece so that, if desired, itmaybe operated by hand.

The typewheel in normal position effects' the printn of the characters in its upper row.. It can eshifted vertically, as described, to efectthe printing of li ures or characters byactuating the shifter lar or bail 69,to thereby raise thev typewheel against the tension of a spring 193 which extends between lugs fixed respectively to the arm 41 and the shifting plunger 63. The shift bar or bail 69 is actuated by a lever-194 (see Figs. 2 and.

5). Thisy lever pivotally mounted between its ends on the forward portion'of a bracket 195 and is provided at its upper end with an adjustable screw 196 which is arranged to engage and actuate the shifterbar. The bracket 195 also carries the ligure and letter shift solenoid magnets 197 and 198, the cores of which magnets are provided with rods or plungers 199 and 200 and which in turn are arranged to operate respectively the lever 194 and a latch 201. The latch 201 is pivotally mounted on a lug on the front slde of the bracket 195 and is provided with a spring 202 which normally holds itin engagement with its actuating plunger 200.

When the ligure shift shaft 197 is energized, its plunger shifts the lever 194 yand thereby, through the shifter bar or bail 69, raises the typewheel untilthelower row of figuresvand punctuation marks is in printing position. This shift of the lever 194 also engages its lower end with the spring actuated latch 200, so that it and the typewheel are held in shifted position. To return the typewheel, the letter shift magnet .198 is en-A lsame when the letter-shift magnet 198 is energized. A conductor leading to the contact 204 is connected to a fixed clip 207 and the latter in turn is connected by a coil spring 208 of piano wire to the contact. i

The several functions of the printer, other than printing-fsuch as the line feed, carriage return, letter spaclng and figure and letter shift-are controlled by a number of pairs of insulated contacts arranged in a semi-circular series above the stop pin drum of the selector magnet. Eachppair of contacts is mounted on a separate support 209 which is connected by a palr of screws 210 to aplate 211 (see Figs. 6 and'8). The plate 211 is mounted upon the rear ends of the screw bolts 101 which project laterally from the bracket 49. In the formshown, the P18119 211/i5 Provided with a pair of outwardly projecting lugs 212 which guide the upper end ofthe pin drum shift lever 117. Preferably, as shown in Fig. 6, the supports 20S-are provided with curved faces which engage the inner face of the plate 211 so that by means ofthe screws 210 the positions 'of the sup orts and contacts carried thereby can be a justed.

Each pair of contacts comprises an upper spring contact 213l and a lower relatively stiffer and shorter contact 214. The contacts,

ot' each pair are normally held disen aged by a lever 215 pivoted to the correspon ing sup-v port and extending outwardly over the stop pin drum and over the-selector plates. These levers are provided at their inner ends with upwardly projecting lugs which engage the spring contacts 213. The lower edges of the vselectorplates and in position to hold the pairs of contacts 213 and 214 disengaged. As the spring drum moves forwardly, the levers are pressed into engagement with the upper, edges of the selector plates. The notches 216 and 217 on the latter are variably arranged' so that in different settings of the plates one of the levers can be selected and be depressed sufiiciently to'permit the engagement of the corresponding Ipair of contacts. However, the central contactlever is lowered/and each pair ofcontacts engaged at each operation of the drum irrespective of the setting oi'i the selector plates. The other contact levers, however, are selectively' controlled by the plates.A Of course, the return movement of the drum raises all of the levers and disen- I gages the pairs of contacts controlled thereby.

The operation will be understood from the description already given and from a consideration of thecircuits as shown in Fig. 11. The apparatus is controlled by a relay R which acts in response to the two different line conditions of the five-unit code to shift its tongue between the spacing and marking contacts. A distributor brush l D, which operates in substantial synclironism with the transmission of the code impulses over the line, successively connects the marking contact of the line relay to a series of contacts 1, 2, 3, 4 and 5 whichV are connected respectively to thecorresponding selector magnets. The tongue of the line relay is connected to battery so that as the dili'erent code signals are received the selector magnets will be variably operated at different combinations and will ythe local battery. But the operatin relay 218 will not be energized to e ect they correspondingly, as described, effect different settings of the selector pla-tes. v-

The operating circuits of the machine are controlled by a relay 218 and the contacts 138 and 139 are interopsed in the circuit of this relay. The distributor brush D, or a suitable switch operatedin synchronism withthe! brush D, is 'arranged to connect the local bat-y tery to the contact 138 'after the distributor4 V brush has passed over the selector magnet contacts. As shown in the diagram, the' brush' D is arranged to engage a segment 6v which is 'connected to the contact 138, and, since the lin'e'circuit signal is preferably such that'when the brush engages the contact 6 the tongue of the line relay R. will engage its marking contact, the engagement of the brush with contact 6 will connect the contact 138 to pulse operation of the printer unless the contacts 138 and 139 are engaged by the previous operation of one or more of the'selecting magnets.

If, however, one or more of the'selector magnets have been operated, such operation will, as described, move the plate 132 and enga e the contacts 138 and 139. l Then when t e brush D or other means connects the contact 138 to battery an operating pulse will pass through'the coil of the relay .218 and thereby shift the switch tongue 219 into engagement with its front contact. This contact is connected to a local battery B through the normally closed unlocking switch 230 and through the normally engaged unlocking switch contacts 151 and 15,2. The relay tongue 219 is also connected to the coil of this relay so that when the latter is energized a locking circuit is closed through its coil. The relay tongue 219 is also connected to the coil of the drum magnet 120, to the switch tongues 220 and 221, of a relay 222 and to the switch tongues 223 and 224 of a relay 225. The tongue 223 of the relay 225 is normally connected through its back contact to one of the 4th pulse contacts 110, the other of which is connected to the coil-of the relay 222. Relay tongue 223 is also connected through its back contact to one of the drum switch contacts D S, the other of which is connected to the coil of the reset magnet. By reason of this arrangement, the operating pulse energizes the operating relay and drum magnet and` connects thecoils thereof to the local battery through the unlocking switches 152 and 220. Also, if the signal has closed the 4th pulse contacts 110, the 4th pulse relay will be energized and locked in by the engagement of the' tongue 220 with its front contact. This tongue at the same time will also close the circuit of one orv the\other of the rotator magnets 83. The latter are relatively slow-acting, as compared with the 4th pulse relay, and the latter will operate in time to determine which of the rotator magnets is energized in accordance as to whether the 4th pulse of the code signal has been a marking or a spacing pulse. It shouldbe noted that the coil of 'the 4th pulse relay is connected to the local bat- 5 tery B through the 4th pulse contacts 110 andthe switch tongue`223 ofthe print relayg 225. But, if operated, the tongue 220 of the- 4th pulse relay will connect-its coildirectly to the tongue 221 of the operating pulse relay by engaging its front contact. y

While the operating pulse thus simultaneously energizes the operating pulse relay 218, the kdrum'ma et 120 and one of-,the rotator magnets 83, t etypewheel will not be rotated until the selector drum has completed its forward movement and tripped the lockin dogs 126 which, as described, normally ho d the typewheel and its operating gearing against movement.

The partial forward movement of the sellector drum will close the switch contacts D S (which, as stated, are closed at each operation of the selector drum), and ythus complete the operating circuit of the reset magnet 136 which, as stated, is connected to the circuit o the operating relay by the switch contacts D and by the tongue 223 of the print relayY 225. The operation of the reset magnet shifts the plate 132, opens the contacts 138 and 1,39 and,

'as described, restores any of the plungers 88l of the selector magnets which have been shifted. It also closes the contacts 141 and thereby completes the circuitof the print re lay 225.l The tongue y224 of this relay is con- Y nected to the tongue 219 of the operating pulse relay, and its front contact is connected to the coil of the print relay, so that, when the latter is actuated, this coil is locked in closed condition. The shift of the tongue 223 of the print relay opens the circuit of the reset magnet and the selector magnets and their plungers can then be actuated in accordance with the next succeeding line signal, before the op Veration of the printer is completed.

' The shift of the print relay'tongue 223 which, as stated, is connected to the circuit of the operating pulse relay, also by engagement with itsv front contact closes the circuit from the local battery through the switch tongue 226 of a cut-out relay 227 and thence through vthe striker and letterispace magnets in series. The typewheel is then swung for- Wardlyto print the selected letter and also, by disengaging the unlocking switch contacts 151 and 152, opens the operating circuit of the printer so that all magnets and relays are restored to normal condition to elfec't the printing of the next signal.

When' the drum magnet is de-energized the pins 97 are withdrawn from the selector plates 96 so as to release the latter. When this occurs the springs 108 return or tend to return' the selector plates to normal. But, if in the meantime, one or more of the latches. 86 have been tripped by the nextsignal and the correspondin controlling members or plungers 88 con itioned for operation or moved to operative position by the springs '94, such conditioning or setting of the controlling members or plungers will be transferredto the selector plates as soon as they are released by the return of the pin drum to normal. This delayed operation is permitted becausev the selector controlling or setting movements of the plungers 88 arenot effected positively but by means of the yielding springs 94. f j

If the` particular setting of the selector magnets corresponds to afunction such as the this circuit passed through the coil of the cut out relay, it will operate its switch tongue 226 and also a switch tongue 228 which would then serve to close the circuit from the battery B through the coil of an unlocking relay 229.V The latterwould open the switch 230 and restore the parts of the printer to normal. When the line feed is thus actuated,

the reset magnet 136 will operate. as previously described, and close the circuit of the print relay 225, but since the cut-out relay has been energized .and opened the normally closed switch tongue' 226, the operation of the print relay will not close the circuit of the striker and letter-space magnets and the latter will not be operated.

If, for eXample,-.the function selected had -been the carriage-return, the operation would have been similar,except that, with the arrangement shown, the 4th pulse of the carriage return signal is a marking pulse and,`

hence, contacts 110 would be closed and the 4th pulse relay v222 energized. Hence, the circuit from the relay tongue 221 would be completed through its front Contact to a second windingofthe cut-out relay 227 and thence, through the switch contacts C R, to`

the carriage return magnet 179. Itis noted that the function contacts control and are connected in parallel in the circuit of one or the other of the coils fof the cutout relay and the latter is operated whenever a pair of function contacts is selected.

The operations effected occur in the fol- -lowing order: (1) The selector magnets are 'operated to set the plates and close the contacts 138 and 1 39. (2) The operating pulse relay Iis actuated, locks itself in, and connects the contacts 110 to the local battery; if these contacts have been engaged the 4th pulse relay 222 is also operated.y (3) The operation of the drum magnet occurs shortly after the operation of the relays 218 and 222. Although the drum magnet receives current at the same time as the relays, the latter act more quickly. (4) As soon as the selector drum moves a short distance, the drum 'switch D S is closed and elfects the operation of t-he'reset magnet 136. (5) As soon as the selector drum completes its movement, it unlocks the rotator mechanism, and one of the rotator magnets, which has been receiving current through the tongue 220 of the 4th pulse. relay, rotates the type-wheel; (6) As soon as the reset magnet completes its travel,

it connects the print relay to the local bat-l tery, as described, and the operation of the latter disconnects the 4th pulse contacts 110 and the reset magnet from battery andconnects battery to the striker and spacer magnets in series. (7) When the typewheel strikes the platen, the arm 145 opens the unlocking switch 152 andall operated relays and magnets are restored to normal. When one of the function magnets is actuated, the succession of operations is the same, except that the partial forward movement of the selector drum will engage the selected function switch contacts and connect battery the coil of the corresponding function magnet. The operation of the cut-out relay, as

described, prevents the operation of the striker and letter-space magnets, as described,

'and connects battery to the unlocking or restoring relay 229.

From the foregoing it is obvious that the operatingpulse relay must be actuated in order to initiate the operation of the printer and it will not be so actuated unless one of,

the selector magnets has been operated to close thecontacts 138 and 139. The 4th pulse relay 222, through its tongue 220, determines the direction of rotation of the typewheel and through its tongue 221 determines which of two sets of function switch contacts will be connected to battery, since one set of the function switch contacts lis connected' tothe front contact of the relay tongue 221 and another set to the back contact of this tongue. The particular circuit closed is of course determined bythe setting of selector plates which, as noted, are arranged to select one of the pairs of function switch contacts when a function signal is received. It should be noted that the operation of selecting magnet 4 does not imme- I' diately' effect the operation of the 4th pulse relay, but merely closes the contacts 110 which, when the operating pulse relay 218 1s energized, completes the` circuitof the 4th pulse relay. Since this circuit passes through the print relay tongue 223 and its back contact, the 4th pulse relay 222 can only operate before the print relay 225 operates. This prevents the operation of the'4th pulse relay during the printing of `a letter.

Both the operated pulse relay and the 4th pulse relay are provided with two windings. In the case of the latter, the relay is operated through one winding and locks itself in with a weaker current through a second winding. The operating pulse relay is operated through one winding and locks itselfl in with a weaker current through both windings vin series.

The function switch contacts S are connected to the contact screw 205 which cooperates with the contactl 204 and the latter is connected to the circuit of a signal bell 231. The lower row of figures and punctuation marks on the typewheel has a blank space in line with some one `of the characters-for eX- the circuit of the signal 230 can be closed by transmitting the ligure signal, followed by the signal for the letter J This circuit will be opened-by operating the letter shift magnet 198. A through one winding of the cut-out relay and A lamp 231 is connected to a series of contacts arranged between the selector magnet contacts of the distributor. When signals are being received, some of the impulses'or intervals are -necessarily marking and, as the distributor brush passes over the cont-acts connected tothe lamp, the latter will receive current and flash when marking intervals or impulses are received. When no marking intervals or impulses are sent over the line, the lamp will not be affected. This arrangement prevents the loss vof messages since, when the lamp flashes, the printer should operate, and, unless this is the case, atteniton is directed to the fact that the printer is not properly operating.

The five controlling relays (see Figs. 2 and 3) are mounted in the upper portion of a supplemental frame 233 which is arranged in the plate and the heads of the screws.l In this way the controlling relays are yieldingly supported and the vibration imparted to the main frame by the operation of the printer will be absorbed by the springs and will not tend to improperly eilect the contacts of the controlling relays. p

' vtails set forth without departure from the esv Obiriously, changes may be made in the de- Sentials of the Vinvention as defined in the claims.

- printing means controlled thereby, a Set of selector Shifters, individuall springs for effecting tlie selector setting movements of said Shifters, latches for holding Said Shifters inV retracted positions, a set of selecting magnets for tripping said latches, and meansy for resetting said Shifters independently of Said selectors and in advance of the complete op- -fration of said .printing means. Y

2. In a telegraph'printer, a type wheel, a rotator therefor, a co-operating striker, selecting pins for arresting the rotation of said type wheel, -a Set of selector plates controlling said pins, actuating Shifters for said plates, having a one-way connection therewith, a resetting'member for Saidshifters, and means for operating the selector pins, resetting member,l type wheel, rotatory and striker in the order named.

3. In a telegraph 'pi-inter, a type wheel, a rotator therefor, a co-operating striker, Selecting pins for arresting the rotation of s aid type wheel, a set of selector plates controlling said pins, actuating Shifters for said plates having a one-Way connection therewith, a i-csetting member for Said Shifters, a Set of se lector magnets controllingV said Shifters, and y Separate actuating magnets and controlling means for effecting thev operation of said pins, resetting member, rotator and strikerin the order named.

4. In atelegraph printer, a type wheel, a rotator therefor, aco-operating striker, selecting pins for arresting the rotation of said type wheel, a set of selector plates controlling said pins, actuating Shifters for said plates I having a one-way connectionztherewith, a re` setting member for said Shifters, latches for .holding said Shifters in normal position,

means for variably operating said latches in different combinations in accordance with the signals received, and means for successively operating said pins, resetting member, ro- 'tator an striker.

5. In a telegraph printer, altype wheel, a

Yrotator therefor, a co-operating striker, Se-

^ nets for actuating said pins, resetting ment' lecting pins for arresting the rotation of Said t e wheel, a Set of selector plates controlling said pins, actuating Shifters for said plates having a one-way connection therewith, a re-- setting member f or said Shifters, latches for holding said Shifters in normal position, a set of selecting magnets for tripping said latches, and an operating circuit and separate magber, rotator and striker in order.

6. In a telegraph printer, printingY means y including a Set of type and a striker magnet,

selecting pins for determining the operation magnets for tripping Shifters for Said plates, latehes,for holding Said Shifters in normal position, selecting said latches, a reset et for restoring Saidshifters independent y of said plates and an operating circuit and contact means for actuating the selecting magnets, pin magnet, reset magnet and striker magnet .in 4the order named.

7. In a telegraph printer, printing means including a set of t pe and a striker magnet, selecting pins forl eterminin the operation of said printin means, a set` o Selector plates controlling sai pins, a magnet for engagin said pins with Said plates,Y spring-actuated Shifters for said plates, latches for holding said Shifters in normal position, selecting' magnets for tripping said latches, a reset magnet for restoring said Shifters independently of said plates, a print relay actuated by said reset magnet, controlling said .striker magnet and arranged, when actuated, to restore said reset magnet, and means for oper` ating said selecting pin and reset magnets in order.-

8. In a telegraph printer, printing means including a set of type and a striker magnet, Seleetingpins fordetermining the operation of said printing means, a set of selector plates spring-held in normal position for determinin Shifters having a one-wayv connection with said plates and springv actuated to set the Same, a Set of Spring-held latches for holding said Shifters in normal position, means for tripping said latches in different combinations and for initiating the operation of-said printing means, and means for resetting said Shifters in advance of the lcomplete operation of Said printingmeans. A

9. In a telegraph printer, a set of type and acooperating striker magnet, selector mechamsm comprising selector plates and pins and a magnet for engaging the same, actuating Shifters for said plates, Selecting magnets controlling the operationV of Said Shifters, a reset magnet therefor controlled by said pin magnet, an operating pulse magnet having a locking circuit for controlling said pin Amagnet, and a print relay actuated by Said thereby, contactsA controlled by one of said magnets, a- Set of selector plates controlled by the other selecting. magnets, printing means having characters selectedin pairs by said selecting plates, an operating pulse relay controlled b said distributor, arelay controlled bye combined operation of said the setting of said pins, a set of selected in pairs b said contacts and said operating pulse relay, and means controlled by said relays for printing one of the two selected characters. 11. In a telegraphy printer, a distributor switch, a set of selecting magnets controlledthereby, contacts controlled by one of said magnets, a set of selector plates controlled by the other selecting magnets, printing means having characters selected 1n pairs byl said selecting plates, an operating circuit controlled by the combined operation of said distributor and said selecting magnets, a locking rela for said operating circuit, a rela1 trol ed by said locking relay and'sai contacts, and means controlled 'by said'circuit and relay for printing one of the two selected characters.

12. In a telegraph printer, a distributorswitch, a set of selecting ma ets controlled thereby, contacts controlled; y one of said magnets, a set of selector platescontrolled by the other selecting magnets, a type wheel yieldingly held in centra position, rotators for turning said wheel in opposite directions, stop pins for said wheel adapted to be plates, an operating circuit controlled y said distributor, a relay in said circuit controlled by said contacts and /controllin said type wheel rotator means,

and a str' er magnet in said circuit.

13. In a telegraph printer, 'a distributor,

i selecting magnetsl controlled by said distributor, selector plates operated by said magnets, a type wheel, rotating means there` for, stop pins controlled by said plates'for arresting said type wheel, a lock .for said rotating means, a shifter for engaging said stop pins and said selector 4plates arranged to release said lock, magnets for respectively operating said rotating means and said shifter, and means controlled by said distributor for simultaneously energizing said operating magnets.

14. Ina telegraph printer, printing and function mechanisms, operating magnets therefor, a set of function contacts springpressed towards each other, Shifters normally holding said function contacts open, a set of character selecting pins, selector plates arranged to be operated in different combinations, and means for engaging said l p ins and Shifters with said plates.

15. In a telegraph printer, printing and function mechanisms, operating magnets therefor including a striker magnet, a cut-out relay for said striker magnet, c0ntacts controlling said function magnets and said cutout relay, character selecting pins, a set of selector plates adapted to operate in different combinations and selectively control said pins and contacts, an operating circuit having a locking relay, an unlocking relay controlled by said cut-out relay, and unlocking switches .controlled respectively by said striker magnet and said unlocking relay.

16.` In a telegrapli'printer, a platen,a slidingv carriage therefor, on said carriage, a type wheel journaled on said arm," a main track b ar for said carriage parallel with said platen and arranged in a plane extending through the printing point of said platen and the' pivot of said striker arm, type-wheelrotating and striker operatling he operation of said type wheel.

1 In a telegraph printer, a 'carriage movable in letter space direction, restoring means for said carriage, fixed vand movable letter a striker arm pivoted -l ing means, and selecting mechanism controlf spacing racks, holding and spacing dogs ony l said carriage engagingy said racks, magnet for shifting said `movable rack, a releasing member for'disengaging. said dogs, and locking parts for said release\bar mounted thereon and on said movable rack and arranged to be disengaged by the operation of said rack.

18. In a telegraphprinter, a main frame,

a spacing y a sliding carriage, .a type wheel mounted thereon, letter-spacing mechanism for said 4 carriage, a type wheel rotating shaft journaled on the main frame and geared to said type wheel, the latter having a number of rows ofv type, a shifter on said carriage for raising and lowering said type wheel, an

' actuating bail for said shifter pivoted on the main frame, an actuator for said bail, a locking dog for said actuator, 'and separate magnets controlled by the line circuit for operating said actuator Aand releasingsaid dog.

19. In a telegraph printer, printing and Yfunction mechanisms, operating magnets therefor'including a striker magnet, a cutout for said striker magnet, contacts controlling said function magnets and said cutout, charcontrolling said mechanisms, contacts controlled by said selecting devices, and a circuit forthe control of said printing and letter-spacing devices and in which said contacts are connected in .paralleh 21. In a telegraph printer, the combination with a set of type and striker letter-space mechanisms therefor of auxiliary function mechanisms, a set of selectors operable in different combination for controlling said type, contacts controlled by said selectors for determining the operation off said function mechanisms, and a circuit for disabling said striker letter-space mechanisms and in which said contacts are connected inparallel.

22. In a telegraph receiver, recording mechanism, selectable controlling members therefor, one for each character, a set of selectors operable in different combinations to selectV said members, a corresponding set of Shifters independently` movable to osition the associated selectors, means indivldual to each shifter for effecting its selector positioning movement, a distributor and means cooperating therewith to variably and successivelycontrol said shifter moving means, and means for resetting said shiftersjindependcntly of said selectors and in advance ofsthe complete operation of said recording means:

23. In a telegraph receiver, a recording mechanism, a set of selectors operable inv different combinations for controlling the operation of said recording mechanism, a correspondnig Set'of shifters, Springs for effecting the selector setting movements of said shifters, latches for holding said Shifters against operation, a rotaryA distributor anda coopcrating electro-magnetic means responsive to receive signals for tripping said latches suc-A cessivel and in different combinations, and means for resetting said VShifters independently of said selectors and in advance of the complete operation of said recording means.-`

24. In a telegraph receiver, the combination with a main frame, of printing mecha.-

nism movable horizontally thereon in letter space direction 'and vertically movable to dif-3 ferent case positions, a case shift bail mounted on the mainframe for raising and lowering said printing mechanism, an actuator for lifting said bail, a locking dog for holding said bail in raised position, a set of selectors operable in different combinationsl for controlling said printing mechanism and separate devices' responsive to different operations of said set of selectors for respectively operating said actuator and releasing said do 2g5. In a telegraph printer, printing and function mechanisms, operating magnets therefor, a set of selector plates operable in. different combinations for` selectively con-` trolling the operation of said printing and function mechanisms, Shifters for positioning said selector plates, selecting magnets controlling the operation of said Shifters, an

-energizing circuit for said operating magnets having a locking relay, distributor means for controlling the circuits of said selector magnets and said operating circuit in order, means controlled by said operating circuit vfor resetting said Shifters and subsequently restoring saidnselector plates, normally open contacts in said operating circuit and an actuator adapted to be shifted by the armature of any one of said selecting magnets for engaging said contacts.

26. In .a telegraph receiver, recording mechanism, selectable controlling members therefor, one for each character', a set of selectors adapted to be positioned in different combinations to select said members, individual Shifters for said selectors, a rotary distributor member and electromagneticv means cooperating therewith tocontrol said shifters, and spring means for effecting the selector i setting movements of said Shifters` and per-` vmitting the delayed operation thereof.

27. In a telegraph receiver, recording v conditioning said selector Shifters in difer- A ent combinations, and individual springs for effecting the selector positioning movements of said Shifters and permitting the delayed operation thereof, the selected controlling member serving to hold said selectors -in set position independentl of said Shifters.

28.v In a telegrap receiver, recording p means, a set of permutation members for controlling the same, springs forshifting said members `in one direction, individual spring actuated controlling members opposing said springs and cooperating therewith to set said permutation members each in either one of two positions, latches for-holding'said conj trolling members inretracted position, a distributor, and electromagnetic means cooperating therewith for tripping said latches in different combinations in response to received signals. v

29.l In a telegraph receiver, recording means, a set of controlling permutation members each spring-pressed toward one of two positions, individual controlling members spring-pressed to operative position and each serving in such position to set the associated permutation member in the other ofits two positions, latches for holding said controlling members in operative position, means responsive to received signals for conditioning said controlling members in different combinations, and means independent of said con- 'trolling members for locking andv releasing said permutation members.

30. In a telegraphprinter, the combination v with printing means including a set of type, cooperating st and spacing mechanisms and auxiliary selectable devices individual to the type and function mechanisms, a set of selector plates having openings` adapted. to be aligned to select said devices, a corresponding set .of

Shifters spring-actuated to move said selectors and thereby position the saine indifferent combinations, latches for-holding said Shifters in retracted position, a rotary distributor and a cooperating set of electro-magction mechanisms, of 

